Pipe-cutter.



F. E. WELLS-.

v PIPE CUTTER. APPLIcATmN FILED JULY 29. 1915.

1,166,505. Patented Jam, 1916.

- IN VENTOR.

WITNESSES.- fl ky! FnEnEnIon. WELLS, or GBEENFIELD,MAssAoHUsEjrrs--PIPE-CUTTER.

Specification of Letters Patent. 'Patent'ed Jan 4, 1916; 7

Application filed July 29, 1915. Serial No. 42,563,

To all whom it may concern: I

Be it known that I, F REDE-RIC E..WELns,.

a citizen of the United States of America, residing 1n Greenfield,county of Franklin,

and State of Massachusetts, have-invented certain new and usefulImprovements in Pipe-Cutters, of which the following is a specification.

This invention relates to improvements in pipe cutters and similartools, and par-.

employ a head slidof the ways and the latter are frequently- T-shaped.Obviously,with such conditions, either the head or ways .;must be in twoparts unless some unusual structure is provided in order that the headmay be placed upon the. .ways. To make the'parts described in twolormore pieces involves machine work of som'esort to properly securethe/parts in cooperative engagement with the ways.

price, which will be suitable for ordinary 'work, and in providing toolsof this character, it is necessary to simplify the structure as much aspossible. Particularly, the

amount of machine work necessary must be reduced to a minimum as thisitem is the most expensive one in the manufacturing arts.

The object of this invention is to provide a pipe cutter or like tool inwhich the structure is so simplified and improved that a minimum amountof machining operations are required.

More particularly, an object of the invention is to provide ahead forthe cutter and a frame having ways upon which the former is arranged toslide, wherein both parts are one piece structures. 7

Another object is to provide a pipe cutter having a one-piece frameformed with a hole to loosely fit a threaded rod, a slot in the frameintersecting with the hole and an interiorly threaded hardened bushingarranged to fit in'said slot to engage said rod, wherein the walls ofsaid slot are arranged to hold the bushing against axial and turningmovements.

Another Ob ect is to provide in a device having substantially T-shapedways a. head having integral depending extensions of malleable materialwhich are arranged to freely fit over said ways and later to be se vcured thereto in cooperative relation by bending or deformation of thematerial.

.Withthese objects in view-one preferred embodiment of the invention isshown, for illustrative purposes, in the accompanying drawings, inwhich:

Figure 1 is a side elevational view of a pipe cutter showing theinvention as ap- V plied thereto; Fig. Ais a cross sectional view takenon the line 22 of F ig; 1 and looking. in the direction of the'arrow's;Fig. 3 is'a, view taken similarly to Fig.2, showing the.

manner of assembling the. sliding element on the frame; F 1g. 4: 1s across sectional view taken on the line 44: of Fig. 1 and looking in thedirection of the arrows; and

Fig.15 is a. artial longitudinal section of Fig.1. Referring to these drawingsin detailj-d representsthe frame of the pipe cutter, which issubstantially U-shaped and has upwardly.extending-portions :2-and 3;.The 31301131011 2 forms a bearing for the usual- A demand has arisenfor tools of lowthreaded rod i by means of which the cutter ismanipulated. The bearing portion 2 has near one end thereof with a slotformed by spaced Wings 5 and 6 the flat surface 7 of frame 1. \Vithinthis slot-is a hardened in: teriorly threaded bushing 8, which engageswith the threads on the rod 4. This bushing has a cut away portion 9which engages with the surface 7 to prevent revolution of the bushing 8in a manner clearly shown .in i

downwardly extending concave extensions 12 on either sidethereof toengage the ways 10. The inner end of the red 4 is connected to themember 11 by a set screw 13 in such a manner that the rod is freelyrevoluble with the head or slide ll but isheld from axial movementrelative thereto. 7 The head 11 revolubly supports the usual pair ofspaced rolls l4. Rotatably mounted in'the arm 3 of frame 1 is the usualcutter wheel 15.

The operation of the device is too well known'to need extendeddescription. The Y rod 4 When turned, moves relatively to the bushing 8,and thus frame 1, forcing the rolls 1% toward the cutter 15. The rolls14 force the pipe to the cutter 15 and, when the frame 1 is revolvedaround the pipe by using the rod 4 as a handle, the pipe may be cut off.

It is particularly to be noted that the slide or head 11 and extensions12 are integral parts of a one piece member and the latter is preferablya malleable casting but may be formed of any other-suitable materialwhich is malleable. The extensions 12, as clearly shown in Fig. 3 arespaced sufliciently to permit them to be placed over the convex Ways 10.Thereafter, these extensions are forced inwardly to grip the Ways 10 asshown in Fig. 2. During the process of hammering the extensions 12 intoengagement ivith the "Ways, a block 16 is inserted between the bosses17, as indicated in dotted lines in Fig. 3, so that the deformation ofthe material will occur in the lower portion of the head and not cause abinding action upon the rolls 141.

It Will thus be seenthat by the provision of ahead having malleableextensions, the

v head or slide may. be applied quickly and in an inexpensive manner tothe ways on Which it slides. The head requires no machine Work otherthan that for mounting the rolls, which is necessary in-any case. By thepro- 7 vision of the bushing 8, the necessity for Copies of this'patentmay be obtained for threading the frame 1 is avoided. Moreover, thebushing may be hardened While the frame, which is preferably a dropforging, cannot be hardened. Thus the structure is not only simplifiedbut improved as the wearing qualities of the bushing are far su periorto those of the frame.

Thus, I have provided a simple and improved structure for a pipe cutteror like tool Which is exceptionally cheap to manufacture and yet isstrong and durable.

It is recognized that many changes may be made in the structuredescribed Without departing from the scope of my invention which isdefined in the appended claim.

What I claim is:

The described method of forming and assembling the carrying elements ofa pipec'utter Which comprises forming (1) a guideway, T-shaped in crosssection and having convex side edges, and (2) a slide for carryingrollers "having spaced depending inwardly concave, extensions; "bringingthe guideway and slide into the required relative positions andinterposing a spacing block of the required shape and size; and finally,forcing the depending extensions to- Ward each other and into grippingand slidingengagement with the side edges of the guideway.

FREDERIC E. WELLS.

five cents each, byaddr'essing the Commissioner of Patents, Washington,D. G.

